For the past couple of years, the Mars Express orbiter of the European Space Agency (ESA) has been keeping an eye on a mysteriously long, thin cloud that periodically shows up over Arsia Mons, the 12-mile-high (20-km-high) volcano on Mars. Arsia Mons Elongated Cloud Return of the extremely elongated cloud ... on Mars A mysteriously long, thin cloud has again appeared over the 20-km high Arsia Mons volcano on Mars. She also serves as one of the voices of EarthSky on social media platforms including Facebook, Twitter and G+. The elongated cloud hovering near Arsia Mons this year was also observed with the visible and near-infrared mapping spectrometer, OMEGA, and the High Resolution Stereo Camera (HRSC) on Mars Express, providing scientists with a variety of different data to study this phenomenon. The Mars Express science team has named the cloud the Arsia Mons Elongated Cloud, AMEC. A repeated weather phenomenon occurs each year near the start of southern winter over Arsia Mons. She said: The extent of this huge cloud can’t be seen if your camera only has a narrow field of view, or if you’re only observing in the afternoon. What is the Arsia Mons Elongated Cloud? “This elongated cloud forms every martian year during this season around the southern solstice, and repeats for 80 days or even more, following a rapid daily cycle. The stream forms as the airflow is influenced by the side of the volcano that does not face the wind, baffling scientists. Mars Express mission team member Eleni Ravanis works specifically for the VMC instrument. Most spacecraft in orbit around Mars tend to observe in the Martian afternoon. EarthSky’s yearly crowd-funding campaign is in progress. A year at the Red Planet consists of 668 sols, approximately 687 days, so the seasons last for twice as long. “We have been investigating this intriguing phenomenon and were expecting to see such a cloud form around now,” explains Jorge Hernandez-Bernal, PhD candidate at the University of the Basque Country (Spain) and lead author of the ongoing study. Le nuage allongé d'Arsia Mons (AMEC) est un nuage sous le vent observé au-dessus du volcan dormant d'Arsia Mons, haut de 20 kilomètres, sur Mars. A mysteriously long, thin cloud has again appeared over the 20-km (~12 miles / 65,000 feet) high Arsia Mons volcano on Mars.. A recurrent feature, the cloud is made up of water ice, but despite appearances, it is not a plume linked to volcanic activity.Instead, the curious stream forms as airflow is influenced by the volcano’s ‘leeward’ slope − the side that does not face the wind. The southern solstice is the period of the year when the Sun is in the southernmost position in the martian skies, just like 21 December on Earth. This elongated cloud forms every Martian year during this season around the southern solstice, and repeats for 80 days or even more, following a rapid daily cycle. The elongated cloud formation can reach 1,800 kilometers (1,120 miles) in length, and hovers above the 20-kilometer-high (12.4-mile) Arsia Mons volcano, close to the planet's equator. A mysteriously long, thin cloud has again appeared over the 20-km high Arsia Mons volcano on Mars. Chez ARSIA MONS, nous sommes les Architectes du changement. It’s made up of water ice, and while it may look like a smoke plume linked to volcanic activity, its airflow is directly influenced by the volcano’s ‘leeward’ slope, or the non wind-facing side. That means we can catch it!”. However, we don’t know yet if the clouds are always quite this impressive”. The cloud has a tail-like structure, consists of water and ice and can gain over 1,800 kilometers (1118 miles) in length. It is formed when local winds interact with the topography in a certain way and not because of the volcano it forms over. A Martian day, or sol, is slightly longer than an Earth day at 24 hours, 39 minutes and 35 seconds long. July 2020; Conference: XIV Reunión Científica de la Sociedad Española de Astronomía As per ESA, the tail-like cloud made of water ice can be as long as 1,800 km. Click here for an annotated version of this image. As they study this cloud more, they hope to discover why it appears and reappears only in the morning hours. So, how long has it been disappearing and reappearing? Just before southern winter begins, sunlight warms the air on the slopes of the volcano. And the Arsia Mons Elongated Cloud doesn't just come, stick around for a while, then dissipate. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. NOS VALEURS. The cloud can grow to be up to 1800 km (1120 miles) long. ENGAGEMENT. The cloud stretches for about 930 miles (1500 kilometers) and hasn't dissolved for over a month. The Arsia Mons Elongated Cloud (AMEC) is a lee cloud that is spotted over the 20-kilometers (12 miles) high Arsia Mons dormant volcano on Mars. A mysteriously long, slim cloud has once again appeared about the 20-km-substantial Arsia Mons volcano on Mars. In the early mornings during this period, this fleeting cloud grows for approximately three hours, quickly disappearing again just a few hours later. (European Space Agency) At a Glance. Photo credit: ESA/GCP/UPV/EHU Bilbao A bizarre thin elongated cloud has recently appeared over the 12.4-mile high Arsia Mons volcano on Mars. Scientists have spotted the mysterious elongated plume above Mars’ Arsia Mons volcano reappear and say it is not created by volcanic activity on Mars. Since September 13 2018, an impressive elongated cloud was spotted by VMC around the Arsia Mons volcano, this curious cloud atracted the attention of thousands of people who were curious about this singular event in Mars. Why does it only form in the early morning? It’s made up of water ice, and while it may look like a smoke plume linked to volcanic activity, its airflow is directly influenced by the volcano’s ‘leeward’ slope, or the non wind-facing side. A mysterious elongated cloud that stretches some 1,100 miles over Mars has returned - it was last seen in 2018. Izduženi oblak uz Arsia Mons) je ponavljani vremenski fenomen koji se formira svake marsovske godine oko južnog solsticija nad Arsia Monsom, a ponavlja se 80 dana ili čak i više, nakon brzog dnevnog ciklusa. The scientists have named it the cloud as Arsia Mons Elongated Cloud (AMEC). Scientists continue to investigate. Picture: ESA. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano (EGU 2020) The cloud has been officially named the Arsia Mons Elongated Cloud or AMEC. Instead, the curious stream forms as airflow is influenced by the volcano’s ‘leeward’ slope − the side that does not face the wind. A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity. Izduženi oblak uz Arsia Mons) je ponavljani vremenski fenomen koji se formira svake marsovske godine oko južnog solsticija nad Arsia Monsom, a ponavlja se 80 dana ili čak i više, nakon brzog dnevnog ciklusa. It called the Arsia Mons Elongated Cloud or AMEC. We study this Arsia Mons Elongated Cloud (AMEC) using images from VMC, HRSC, and OMEGA on board Mars Express, IUVS on MAVEN, and MARCI on MRO. Credit: ESA/GCP/UPV/EHU Bilbao A mysteriously long, thin cloud has again appeared over the 20-km-high Arsia Mons volcano on Mars. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. The Arsia Mons Elongated Cloud (AMEC) is a lee cloud that is spotted over the 20-kilometers (12 miles) high Arsia Mons dormant volcano on Mars. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. Instead, the curious stream forms as airflow is influenced by the volcano’s ‘leeward’ slope − the side that does not face the wind. A mysteriously long, thin cloud has again appeared over the Arsia Mons volcano on Mars. In the early mornings during this period, this fleeting cloud grows for about three hours, quickly disappearing again just a few hours later. The elongated cloud hovering near Arsia Mons this year was also observed with the visible and near-infrared mapping spectrometer, OMEGA, and the High Resolution Stereo Camera (HRSC) on Mars Express, providing scientists with a variety of different data to study this phenomenon. That means we can catch it! The southern solstice is the period of the year when the sun is in the southernmost position in the Martian skies, just like the December 21-22 solstice here on Earth. DetailsRelated. It is formed when local winds interact with the topography in a certain way and not because of the volcano it forms over. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. The Visual Monitoring Camera (VMC) attached to Mars Express captured a mysteriously long, thin cloud over the 20 km (12 miles) high Arsia Mons volcano on July 17 and 19, 2020. | The Mars Express orbiter, which has been studying Mars for the past 16 years, captured these images of a strange, very elongated cloud on Mars on July 17 and 19, 2020. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. Why does it only form in the early morning? The Mars Express science team have now named the cloud the Arsia Mons Elongated Cloud, AMEC. Starting in September 2018, a daily repeating extremely elongated cloud was observed extending from the Mars Arsia Mons volcano. Mysterious cloud forms over Arsia Mons volcano on Mars. It forms each morning, then disappears the same day, only to reappear the next morning. On September 13 ESA's Mars Express orbiter spotted an elongated cloud on Mars near the Arsia Mons. Picture: ESA. These images of the cloud, which can reach up to 1800-km in length, were taken on 17 and 19 July by the Visual Monitoring Camera (VMC) on Mars Express, which has been studying the Red Planet from orbit for the past 16 years. She and her husband live in Tennessee and have two grown sons. Since 13 September, ESA’s Mars Express has been observing the evolution of an elongated cloud formation hovering in the vicinity of the 20 km-high Arsia Mons … ... As a result of this rather strange encounter it became known as the Arsia Mons Elongated Cloud and it was listed off as unexplained and unknown by the team of experts inspecting it yet again. Here’s the cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. A bizarre thin elongated cloud has recently appeared over the 12.4-mile high Arsia Mons volcano on Mars. A mysteriously long, thin cloud has again appeared over the 20-km high Arsia Mons volcano on Mars. The elongated "water ice cloud" seen lingering over Arsia Mons on Sept. 13, 2018. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. The cloud expands every morning from the western slope of the volcano, at a westward velocity of around 150m/s, and an … A curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. These images of the cloud, which can reach up to 1800-km in length, were taken on 17 and 19 July by the Visual Monitoring Camera (VMC) on Mars Express, which has been studying the Red Planet from orbit for the past 16 years. Extremely elongated cloud returns over Arsia Mons volcano, Mars. The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. Nous concevons et vous aidons à réaliser les projets innovants qui changeront votre futur. It forms and fades over the course of a few hours each local morning, then returns the next day. What is the Arsia Mons Elongated Cloud? A mysteriously long, thin cloud has again appeared over the 20-km-high Arsia Mons volcano on Mars. A curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. Researchers have named it the Arsia Mons Elongated Cloud (AMEC). As they study this cloud more, they hope to discover why it appears and … Scientists have once again spotted a recurring elongated cloud on Mars, which forms above the 12-mile-high Arsia Mons volcano. Le jour martien, appelé « … A freaky elongated cloud has been appearing over the same volcano on Mars that planetary scientists simply had to give it a name. A Nuvem Alongada de Arsia Mons (AMEC, na sigla em inglês) é uma nuvem orográfica detectada acima do vulcão dormente Arsia Mons de 20 quilômetros de altitude, em Marte. Click to learn more and donate. Most spacecraft in orbit around the Red Planet tend to observe in the afternoon, however Mars Express is in a privileged position to gather and provide crucial information on this unique effect. These images of the cloud, which can reach up to 1800-km in length, were taken on 17 and 19 July by the Visual Monitoring Camera (VMC) on Mars Express, which has been studying the Red Planet from orbit for the past 16 years. Scientists have once again spotted a recurring elongated cloud on Mars, which forms above the 12-mile-high Arsia Mons volcano. The massive extinct volcano that is home to the cloud is Arsia Mons , a 20 km high (12.4 miles) landmark on Mars’ surface. Today, as Lead Editor at EarthSky.org, she helps present the science and nature stories and photos you enjoy. Click here for an annotated version of this image, which is via ESA. Meet the Arsia Mons Elongated Cloud, or AMEC. A similar cloud was found i n the VMC archive in different M artian Y ears (MY) , around the southern solstice (Ls 270º), a season known for a general lack of clouds … A mysteriously long, slim cloud has once again appeared about the 20-km-substantial Arsia Mons volcano on Mars. In 2020, we are donating 8.5% of all incoming revenues to No Kids Hungry. A martian day, or sol, is slightly longer than an Earth day at 24 hours, 39 minutes and 35 seconds long. Nous … Strange Cloud Reappears Above the Arsia Mons Volcano on Mars. It forms each morning, then disappears the same day, only to reappear the next morning. Essa nuvem tem uma estrutura semelhante a uma cauda, é composta de água e gelo, e pode chegar a … Luckily for Mars Express, the highly elliptical orbit of the spacecraft, coupled with the wide field of view of the VMC instrument, lets us take pictures covering a wide area of the planet in the early morning. View larger. So, for how long has it been disappearing and reappearing? Stay tuned as scientists continue to investigate, and we reveal more mysteries from Mars. The scientists have named it the cloud as Arsia Mons Elongated Cloud (AMEC). Instead, the curious stream forms as airflow, influenced by the volcano’s leeward slope (the side that does not face the wind). Scientists on the project recently named the planet's most prominent cloud the Arsia Mons Elongated Cloud, or AMEC. However, Mars Express is in a position to gather and provide crucial information on this unique effect. Since 13 September, ESA’s Mars Express has been observing the evolution of an elongated cloud formation hovering in the vicinity of the 20 km-high Arsia Mons volcano, close to the planet’s equator.. La pression atmosphérique a été mesurée … Ce nuage a une structure en forme de queue, il est constitué d'eau et de glace, et peut gagner plus de 1 800 kilomètres de longueur. In the images, the cloud appears as a white plume hovering over the Arsia Mons volcano on Mars, near the Martian equator, which stretches over 20 kilometers high. A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a … On the leeward slope, water ice condenses, forming a cloud which can extend westward for more than 1000 km. Its long bright trail has become a familiar feature over the peak known as Arsia Mons, to the southeast of … A vos côtés, nous accompagnerons vos ambitions de transformation et votre volonté de franchir avec succès les ruptures technologiques, organisationnelles et humaines portées par le numérique. Click here for an annotated version of this image, which is … In a July 29 statement, ESA said the cloud has appeared again, illustrated by the images above, acquired by the Visual Monitoring Camera (VMC) on Mars Express on July 17 and 19, 2020. Large de 460 km, il possède une caldeira unique de 110 km de diamètre4, la plus vaste de toute la planète, surplombant de 9 à 11 km les terrains environnants du renflement de Tharsis5 et culminant à une altitude de 17 761 m par rapport au niveau de référence martien. July 2020; Conference: XIV Reunión Científica de la Sociedad Española de Astronomía Despite its location and appearance, scientists say it’s not a plume linked to volcanic activity. The Arsia Mons Elongated Cloud (AMEC) is a lee cloud that is spotted over the 20-kilometers (12 miles) high Arsia Mons dormant volcano on Mars. The Visual Monitoring Camera (VMC) attached to Mars Express captured a mysteriously long, thin cloud over the 20 km (12 miles) high Arsia Mons volcano on July 17 and 19, 2020. Wow! Made of water ice, the elongated cloud sits 12.4 miles above the volcano Arsia Mons and stretches some 1,110 miles in length. A Martian year consists of 668 sols – approximately 687 days – so the seasons last for twice as long. The cloud has been officially named the Arsia Mons Elongated Cloud or AMEC. We study this Arsia Mons Elongated Cloud (AMEC) using images from VMC, HRSC, and OMEGA on board Mars Express, IUVS on MAVEN, and MARCI on MRO. A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity. Extremely elongated cloud returns over Arsia Mons volcano, Mars. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano (EGU 2020) A recurrent feature, the cloud is made up of water and ice and can stretch for over 1,100 miles (1,800 km). A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity. The cloud can reach up to 1,100 miles (1,800 km) in length. Sa taille change tout au long de la journée martienne - le matin, il s'allonge, parallèlement à l'équateur. A mysteriously long, thin cloud has again appeared over the 20-km-high Arsia Mons volcano on Mars. Arsia Mons Elongated Cloud ili AMEC (hrv. There's a long, curious cloud lingering over Mars' massive Arsia Mons … Arsia Mons est un volcan bouclier situé sur la planète Mars par 8,4° S et 238,9° E [archive] dans le quadrangle de Phoenicis Lacus. Eleanor Imster has helped write and edit EarthSky since 1995. A mysterious long, thin cloud has made another appearance over a volcano in Mars. A mysteriously long, thin cloud has again appeared over the Arsia Mons volcano on Mars. You have already liked this page, you can only like it once! Bottom line: Images from the Mars Express spacecraft show that a mysteriously long, thin cloud has again appeared over the Arsia Mons volcano on Mars. The massive extinct volcano that is home to the cloud is Arsia Mons, a 20 km high (12.4 miles) landmark on … Is leader of a few hours each local morning, then disappears the same volcano on Mars and... 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